132 [December, 1841. 



from Italy. Also five specimens of lava, from Italy. From 

 Dr. M. Burrough. 

 15 species of Plants, (including a new species of Saxifraga,) 

 collected by A. Gray and I. Carey, in the mountains of 

 North Carolina and Virginia. Presented by Asa Gray, 

 M. D. 



DONATIONS TO LIBRARY. 



Lecture on the connection and reciprocal influence between 

 the Brain and Stomach. By Usher Parsons, M. D., 8vo. 

 1S41. From the Author. 



Notes on a Tour to the White Hills. By G. W. Southwick. 

 8vo. From the Author. 



Written Communications. Dr. Morton read a descrip- 

 tion of two new species of Fossils from the lower cretaceous 

 strata of New Jersey. 



Pinna. 



P. rostriformis. Shell thin, elongated, narrow, smooth, but 

 gently undulated from the beak to the opposite extremity. 



This fossil is not uncommon in fragments in the cretaceous 

 limestone of Timber Creek, in Gloucester county, New Jersey; 

 but this instance is the first which has occurred sufficiently 

 perfect for description. I have referred to it in my " Synopsis 

 of Organic Remains," page 63, but did not then venture to 

 give it a specific designation. The specimen now in question 

 was found and kindly lent me by Mr. Conrad. 



Cidarites. 



C.splcndcus. Scutellrc pentagonal, granulated at the margin, 

 between which and the papilla the surface is smooth and 



